- extremely bold or daring; recklessly brave; fearless: an audacious explorer.
- extremely original; without restriction to prior ideas; highly inventive: an audacious vision of the city’s bright future.
- recklessly bold in defiance of convention, propriety, law, or the like; insolent; brazen.
- lively; unrestrained; uninhibited: an audacious interpretation of her role.
- recklessly bold or daring; fearless
- impudent or presumptuous
1540s, “confident, intrepid,” from Middle French audacieux, from audace “boldness,” from Latin audacia “daring, boldness, courage,” from audax “brave, bold, daring,” but more often “bold” in a bad sense, “audacious, rash, foolhardy,” from audere “to dare, be bold.” Bad sense of “shameless” is attested from 1590s in English. Related: Audaciously.